GitHub user hvanhovell opened a pull request:
https://github.com/apache/spark/pull/14442
[SPARK-16836][SQL] Add support for CURRENT_DATE/CURRENT_TIMESTAMP literals
## What changes were proposed in this pull request?
In Spark 1.6 (with Hive support) we could use `CURRENT_DATE` and
`CURRENT_TIMESTAMP` functions as literals (without adding braces), for example:
```SQL
select /* Spark 1.6: */ current_date, /* Spark 1.6 & Spark 2.0: */
current_date()
```
This was accidentally dropped for Spark 2.0. This PR reinstates this
functionality.
## How was this patch tested?
Added a case to ExpressionParserSuite.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/hvanhovell/spark SPARK-16836
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14442.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #14442
----
commit f614781d7ff897141d977944b7040939728b6b31
Author: Herman van Hovell <[email protected]>
Date: 2016-08-01T18:56:09Z
Add support for CURRENT_DATE/CURRENT_TIMESTAMP literal function expressions.
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